Hand-brake wheel.



F. J. HARRISON & W. J. KNOX. HAND BRAKE WHEEL.

APPLICATION F|L ED NOV. 14. 1914.

1, 1. 3&676, Patented May 18, 1915.

WITNESSES wvzm'rons'.

I QM

To all whom. itrmay concern FREDERICK J. HAnm'soN- Nn WILLIAM'J. KNOX, or DUBOIS, PENNSYLVANIA.

HAND-BRAKE Applfeation fled November 14,1914. Serial 80.372981.

Be it'known that we, Fmannmox J. RISON and WILLIAM J. KNox, both citizens of the United States, residing at llabois, Clearfield county, Pennsylvania, have invented certain new and useful 'Improvements in Hand-Brake ofwhichthe i tofore referred to.

following is a specification. The invention relates to hand brake wheels, and has for its objects the provision of'an improved type of wheel which can be;

used either @with the standard round brake shaft or with a brake shaft angularin cross section such as that shown in our copending a plication, Serial No. 757,150, filed March 2th, 1913, thus reducing" the number of d fferent forms of wheel which must be car ried instock in those cases in which a concern uses both-'types'of, brake shaft. One

embodiment of the invention is illustrated in the accompanying drawings wherein' Figure 11s a plan view ofthe wheel, Fig. 2 1s a partial side elevation and partial section 0 the wheel, Fig. 3 is a section on the line III-III' of Fig. 2, Fig. 4=is a partial side elevation and partial section of the.

v wheel as applied to the upper end of a square brake shaft, Fig. 5 is a section on the line V V of Fig. 4, Fig. 6 is a partial side elevation and partial'section' of the wheel as applled tothe upper end of a standard round brake shaft, and Fig. 7 is a section on the lineVII.VII of Fig. 6.

Referring to Figs. 1, 2 and 3,1 is the rim of the wheel which may be of any desired type, and 2 is the hub which hub is provided with a transverse perforation 3. The hub 2 is providedwith a brake shaft receiving perforation, the upperpart 4 of which is tapering and square in cross section as will be seen by reference to Fi 2 and 7, and the lower part 5 ofwhich 1s untapered and square in cross section as indicated in Fig. 3.

Figs. 4 and 5 illustrate the use of the wheel with a square brake shaft 6 which fits the untapered portion5 of the hub and is held iii-position by means of the transverse bolt 7. p

Figs. 6 and 7 illustrate the use of the wheel with the standard round-brake shaft 8. This brake shaft is tapered and square .at its upper end as indicated at 9, and fits the part 4. (Fig. 2) of the perforation through the hub. Theextreme upper end of the brake shaft"8 is threaded at 10 and the wheel is held against movement with re- Specifieation of Letters Patent.

HAR

Patented May 18, 1915.

spect to the brake shaft by means of the nut 11.

It willbe. seen that the one wheel may be used equally well with the standard round brake shaft having the squared and tapered upper end or with a square brake shaft of types of brake. shaft are employed is reduced, and the cost of the wheel is prac tically no greater than that of the ordinary brake wheel. {It will be noted that the ta poring portion facts as .a stop for thee 11d of the square brake shaft 6 when such type, 1

of shaft is employed, and if desired aslig shoulder 12 may be formed at tha i'ntersec-' tion of the two parts of he hub, the end of f' the square brake shaft shoulder. I --By reference to Figs. ;,3' and 5' itwill be taking against such seen thateach of the sidewallsofthe lower part. of the perforation is recessed on a curve as indicated 13. This,- arrangement not only permits of he use of round brake shaft, approximating in crossectional area that of the square brake shaft, but-also permits of the drifting of this portion of the perforation to the necessary size in case the square brake shaft does not fit the perforation. Any difiiculty as to fitting, of course, occurs at the corners, and with the metal removed intermediate the corners it is comparatively easy to drive in a drifting member and crowd the metal in the corners to a position such that the end of the brake,

shaft will be properly positioned. The construction has the further advantage that'the curved portions 13 serve as a better support for the 'roundbrake shaft than would be the case if the sides were plain. Furthermore, if the squaring of the upper end of the round'brake shaft is not exactly true with respect to the axis of the shaft, the clearance as provided by the recesses 13 permits the shaft to be more readily forced into its extreme upper position What we claim is:

1. In combination, a brake wheel comprising a rim and a hub portion, the said hub portion having a shaft receiving perforation with its upper portion tapering and angular in cross section to fit the upper tapered and angular end of a round brake shaft, and.

shaft angular in cross-section; each of the 'side walls of the said lower portion being section to fit the tapered and squared end of a round brake shaft, and with anotherpart untapered and of square cross section" to fit the end of a brake shaft square in cross section, the portion of the hub having the untapered part of the'perforation being "transversely perforated to receive a member 15 for holdmg the wheel against upward r'novement, and a shoulder beingprovided at the intersection of the, two parts of" the said perforation.

In testimony whereof we have' hereunto. 20 signed our names in the presence of'the two subscribed witnesses."

F; J. HARRISON. WM. J. KNOX.

Witnesses:

HARRY T. SMITH, W I. FLNcH. 

